Use this method after calling XmlValidatingReader.MoveToAttribute(string) to read through the text or entity reference nodes that make up the attribute value. The XmlReader.Depth of the attribute value nodes is one plus the depth of the attribute node. The Depth increments and decrements by one when you step into and out of general entity references.

For example, suppose you have the following XML: <test name="a &b; c"/>

where the entity b is defined in the document type definition (DTD) as follows: <!ENTITY b "123">

If XmlValidatingReader.EntityHandling is set to ExpandCharEntities, the following C# code returns the attribute value as two text nodes and one entity reference node:

reader.MoveToAttribute("name");
  while (reader.ReadAttributeValue())
  {
  if (reader.NodeType == XmlNodeType.Text)
  {
  // at this point reader.Value == "a " or " c"
  }
  else if (reader.NodeType == XmlNodeType.EntityReference)
  {
  // at this point reader.Name == "b"
  reader.ResolveEntity();
  while (reader.ReadAttributeValue() &&
  reader.NodeType != XmlNodeType.EndEntity)
  {
  // reader.Value == "123"
  }
  }
    }